[Photoshop][Illustrator][JSX] Create intermediate directories.

util.jsx

function mkdirp(path) {
    var fullPath = "";
    path = path.toString();
    var arr = path.split("/");
    for (var i = 0; i < arr.length; i++) {
        var folderName = arr[i];
        fullPath += folderName + "/";
        var folder = new Folder(fullPath);
        if (!folder.exists) folder.create();
    }
    return fullPath;
}